Package com.restfb.util

Klasse StringUtils

java.lang.Object
com.restfb.util.StringUtils
public final class StringUtils extends Object
A collection of string-handling utility methods.
Seit:
1.6
Autor:
Mark Allen

  • Felddetails

    • ENCODING_CHARSET

      public static final Charset ENCODING_CHARSET
      Default charset to use for encoding/decoding strings.

  • Methodendetails

    • isBlank

      public static boolean isBlank(String string)
      Is string blank (null or only whitespace)?
      Parameter:
      string - The string to check.
      Gibt zurück:
      true if string is blank, false otherwise.

    • trimToNull

      public static String trimToNull(String string)
      Returns a trimmed version of string, or null if string is null or the trimmed version is a blank string.
      Parameter:
      string - The string to trim.
      Gibt zurück:
      A trimmed version of string, or null if string is null or the trimmed version is a blank string.

    • trimToEmpty

      public static String trimToEmpty(String string)
      Returns a trimmed version of string, or an empty string if string is null or the trimmed version is a blank string.
      Parameter:
      string - The string to trim.
      Gibt zurück:
      A trimmed version of string, or an empty string if string is null or the trimmed version is a blank string.

    • toBytes

      public static byte[] toBytes(String string)
      Converts string to a byte array.

      Assumes string is in ENCODING_CHARSET format.

      Parameter:
      string - The string to convert to a byte array.
      Gibt zurück:
      A byte array representation of string.
      Löst aus:
      NullPointerException - If string is null.
      IllegalStateException - If unable to convert because the JVM doesn't support ENCODING_CHARSET.

    • toString

      public static String toString(byte[] data)
      Converts data to a string in ENCODING_CHARSET format.
      Parameter:
      data - The data to convert to a string.
      Gibt zurück:
      A string representation of data.
      Löst aus:
      NullPointerException - If data is null.
      IllegalStateException - If unable to convert because the JVM doesn't support ENCODING_CHARSET.
      Seit:
      1.6.13

    • fromInputStream

      public static String fromInputStream(InputStream inputStream) throws IOException
      Builds and returns a string representation of the given inputStream .
      Parameter:
      inputStream - The stream from which a string representation is built.
      Gibt zurück:
      A string representation of the given inputStream.
      Löst aus:
      IOException - If an error occurs while processing the inputStream.

    • toInteger

      public static Integer toInteger(String string)
      Returns an Integer representation of the given string, or null if it's not a valid Integer.
      Parameter:
      string - The string to process.
      Gibt zurück:
      The Integer representation of string, or null if string is null or not a valid Integer.